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Hours Apart

Denver to London

These two are not a fixed distance apart. The gap is +6h, +7h at different points in the year, and it changes 6 times.

Reading your clock…

Every gap between Denver and London, with dates

This is the table other converters do not show. Each row is a stretch of the year during which the difference is a particular number. Dates are Denver's local dates.

Time difference between Denver and London by date range
FromUntilLondon isLength
Tuesday, 1 September 2026Saturday, 24 October 20267 hours ahead54 days
Sunday, 25 October 2026Saturday, 31 October 20266 hours ahead7 days
Sunday, 1 November 2026Saturday, 13 March 20277 hours ahead133 days
Sunday, 14 March 2027Saturday, 27 March 20276 hours ahead14 days
Sunday, 28 March 2027Saturday, 30 October 20277 hours ahead217 days
Sunday, 31 October 2027Saturday, 6 November 20276 hours ahead7 days
Sunday, 7 November 2027onwards7 hours ahead—

The highlighted row is the one to watch. For 7 days from Sunday, 25 October 2026, the difference is 6 hours ahead rather than the usual figure. A weekly call booked outside that window arrives an hour off inside it.

Denver hours converted to London

As at Sunday, 13 September 2026. Use the converter above for any other day — and if the table of gaps says the difference changes, these numbers change with it.

Hourly conversion from Denver to London
DenverLondon
07:0014:00
08:0015:00
09:0016:00
10:0017:00
11:0018:00
12:0019:00
13:0020:00
14:0021:00
15:0022:00
16:0023:00
17:0000:00next day
18:0001:00next day
19:0002:00next day
20:0003:00next day

Denver

America/Denver

Changes clocks twice a year, between UTC-07:00 and UTC-06:00. Next change Sunday, 1 November 2026.

London

Europe/London

Changes clocks twice a year, between UTC+00:00 and UTC+01:00. Next change Sunday, 25 October 2026.

When Denver and London can actually talk

On a standard 09:00–17:00 day in both cities, the working hours overlap for 1 hour. That window is 09:00–10:00 in Denver, which is 16:00–17:00 in London.

That is tight. A recurring call here has very little slack, so a daylight saving shift at either end can wipe the window out entirely.

Calculated for Sunday, 13 September 2026. Because the gap changes during the year, this window moves with it — the planner recomputes it for any date you pick.

Put both on a world clockFind a meeting time for both

Questions

Denver and London, explained

What is the time difference between Denver and London?

There is no single answer, which is why most converters get this wrong for part of the year. London is 6 hours ahead, 7 hours ahead relative to Denver at different points in the year. Right now it is 7 hours ahead. The table on this page gives the exact dates for each.

Why does the difference between Denver and London change?

Denver moves between UTC-07:00 and UTC-06:00, while London moves between UTC+00:00 and UTC+01:00. Because the two do not change on the same weekend, and in opposite hemispheres they change in opposite directions, there are short windows each year where the gap is different from the rest of it.

When is the difference between Denver and London unusual?

The shortest window runs from Sunday, 25 October 2026 to Saturday, 31 October 2026 — 7 days during which London is 6 hours ahead relative to Denver rather than the usual amount. Short windows like this are where recurring meetings break, because nobody thinks to check.

Does this account for daylight saving automatically?

Yes. Offsets come from your device's own copy of the IANA time zone database through the browser's Intl API, so they reflect whatever rules are current rather than a table bundled here that could go stale. Pick any date in the converter and it resolves that date's rules, not today's.